If you would prefer to complete your sponsorship transaction by check, please click count me inand choose "I will mail a check" for payment method. Make your check payable to Friends of the River. Then mail to Friends of the River CRA at1418 20th Street, Suite 100, Sacramento, CA 95811. If you would prefer to make your contribution by credit card over the phone, please call Mandi Garcia at 916-442-3155 ext 214.